Ubuntu Encyclopedia

Overview

Use a docs-first workflow for Ubuntu-specific work. Prefer Ubuntu manpages at https://manpages.ubuntu.com/manpages/ for command and utility behavior, use official Ubuntu documentation when the task is broader than a manpage, consult cached local copies under .Ubuntu-Encyclopedia/ before re-fetching, and record useful authoritative excerpts plus environment-specific operational learnings so future work gets faster and safer.

This skill is for the Ubuntu distro/admin layer. It should trigger for Ubuntu-specific package, service, networking, storage, and release-behavior questions — not for generic Linux/shell/dev tooling questions that merely happen to be asked from an Ubuntu machine.

Workflow

1. Classify the task
• Decide whether the task is an Ubuntu-specific question, maintenance task, troubleshooting task, command-planning task, upgrade/update task, or live admin task.
• Use this skill when the task materially depends on Ubuntu-specific behavior, Ubuntu administration knowledge, Ubuntu package/service behavior, or command semantics that should be verified from manpages or official Ubuntu docs.
• Do not use this skill for generic shell work, generic Docker/git/Python work, or generic Linux questions that merely happen to be on Ubuntu when Ubuntu-specific semantics do not matter.

1. Check local cache first
• Use .Ubuntu-Encyclopedia/ as the local knowledge/cache root.
• Check these locations first when relevant:
• .Ubuntu-Encyclopedia/manpages/manpages.ubuntu.com/...
• .Ubuntu-Encyclopedia/docs/...
• .Ubuntu-Encyclopedia/notes/components/...
• .Ubuntu-Encyclopedia/notes/patterns/...
• .Ubuntu-Encyclopedia/inventory/...
• If a cached page or note already answers the question well enough, use it.

1. Consult authoritative Ubuntu sources before answering or acting
• Before answering direct or indirect Ubuntu questions that depend on command syntax, package behavior, service behavior, configuration semantics, or version-sensitive distro details, consult the relevant authoritative source unless the answer is already well-supported by the local cache.
• Prefer sources in this order:
2. Ubuntu manpages for command and utility behavior
3. Official Ubuntu docs for broader workflows and distro-specific guidance
• Before performing non-trivial Ubuntu maintenance or troubleshooting work, consult the relevant docs first when:
• the exact command semantics matter
• service/package behavior is easy to misremember
• the action could affect package state, service health, networking, storage, bootability, or access
• Do not improvise high-impact Ubuntu admin commands from memory when the docs are easy to check.

1. Cache consulted docs locally
• When you consult a manpage, save a normalized cache copy under .Ubuntu-Encyclopedia/manpages/manpages.ubuntu.com/....
• When you consult broader Ubuntu docs, save a normalized cache copy under .Ubuntu-Encyclopedia/docs/....
• Mirror the official path structure as much as practical.
• Cache only pages actually consulted; do not try to mirror the whole docs site eagerly.
• Use scripts/cache_manpage.py or scripts/cache_doc.py when appropriate.

1. Separate authoritative documentation from local observations
• Store manpage-derived material under .Ubuntu-Encyclopedia/manpages/....
• Store other official-doc-derived material under .Ubuntu-Encyclopedia/docs/....
• Store environment-specific operational knowledge under:
• .Ubuntu-Encyclopedia/notes/components/
• .Ubuntu-Encyclopedia/notes/patterns/
• .Ubuntu-Encyclopedia/inventory/
• Distinguish clearly between:
• authoritative documentation
• observed local configuration/state
• inferred best-practice guidance

1. Record useful local learnings
• After useful live work, save durable notes such as:
• package/service management patterns
• host-specific quirks
• repeated repair/maintenance sequences
• networking/storage/admin gotchas
• safe/unsafe operational boundaries for the environment
• Prefer concise durable notes over re-learning the same Ubuntu-specific details later.

Live Work Rules

• Treat manpage/docs lookup as the default preflight for non-trivial Ubuntu work.
• Prefer read/inspect first when entering an Ubuntu area you have not recently reviewed.
• Treat release upgrades, package repair, service/network/storage changes, and boot-impacting admin work as high-sensitivity areas.
• When uncertainty remains after checking cache + docs, say so and avoid bluffing.
• When answering a question, mention when useful whether the answer comes from cached manpages, cached official docs, a fresh lookup, or live observed environment state.

Data Root

Use this workspace-local root for cache and notes:

• .Ubuntu-Encyclopedia/

Expected structure:

• .Ubuntu-Encyclopedia/manpages/manpages.ubuntu.com/...
• .Ubuntu-Encyclopedia/docs/...
• .Ubuntu-Encyclopedia/notes/components/...
• .Ubuntu-Encyclopedia/notes/patterns/...
• .Ubuntu-Encyclopedia/inventory/...

Use scripts/init_workspace.py to create or repair the expected directory structure.

Note Destinations

• Component-specific observations → .Ubuntu-Encyclopedia/notes/components/.md
• Reusable Ubuntu patterns/gotchas → .Ubuntu-Encyclopedia/notes/patterns/.md
• Environment-wide deployment/access info → .Ubuntu-Encyclopedia/inventory/*.md
• Cached manpages → .Ubuntu-Encyclopedia/manpages/manpages.ubuntu.com/...
• Cached official docs → .Ubuntu-Encyclopedia/docs/...

Secrets / Sensitive Data

• Do not store plaintext credentials, API keys, session tokens, private URLs, recovery codes, or other secrets in the encyclopedia notes/inventory tree.
• If a note needs to mention access details, keep it high-level and redact or omit secret material.
• Treat these workspace notes as operational memory, not as a secrets vault.

Resources

• scripts/init_workspace.py — create or repair the .Ubuntu-Encyclopedia/ directory tree.
• scripts/cache_manpage.py — fetch and cache a consulted Ubuntu manpage under .Ubuntu-Encyclopedia/manpages/....
• scripts/cache_doc.py — fetch and cache a consulted official Ubuntu docs page under .Ubuntu-Encyclopedia/docs/....
• references/workflow.md — detailed operating workflow and evidence-handling rules.
• references/cache-layout.md — canonical .Ubuntu-Encyclopedia/ directory structure.
• references/topic-map.md — useful Ubuntu topic groupings for faster authoritative lookup.

Good Outcomes

• Answer an Ubuntu-specific question using cached or freshly checked manpages/docs instead of guesswork.
• Inspect a live Ubuntu host after checking the relevant docs and record any new local operational knowledge.
• Build a growing local Ubuntu knowledge cache that makes later work faster, safer, and more grounded.
• Turn one-off Ubuntu discoveries into durable notes so future work does not rediscover them from scratch.

Avoid

• Triggering on generic shell work that is not materially Ubuntu-specific.
• Answering Ubuntu-specific questions purely from memory when authoritative sources are easy to consult.
• Treating local observed behavior as if it were guaranteed authoritative documented behavior.
• Dumping large amounts of low-value docs into the workspace without a reason.
• Making high-impact live changes before checking the relevant docs when exact behavior matters.